Mini Base Board (C) Designed For Raspberry Pi Compute Module 4

Resources:WIKI:www.waveshare.com/wiki/CM4-IO-BASE-C
Mini Base Board for Raspberry Pi Compute Module 4 with LCD Interface Support for Embedded System Integration
The Mini Base Board (C) for Raspberry Pi Compute Module 4 is a compact carrier board designed to simplify the development and deployment of embedded applications using the Raspberry Pi Compute Module 4 (CM4). Serving as a versatile I/O baseboard, it provides the essential interfaces required for rapid prototyping and seamless integration into custom hardware designs. Its compact footprint makes it an excellent choice for industrial automation, IoT gateways, digital signage, robotics, and embedded control systems.
Designed with direct LCD interface support, the board enables straightforward connection to compatible display modules, making it well-suited for applications requiring integrated human-machine interfaces (HMI). Whether used for proof-of-concept development or production-ready embedded systems, the Mini Base Board (C) helps reduce hardware development time while providing a reliable platform for Compute Module 4-based projects.
Key Features

Designed for Raspberry Pi Compute Module 4: Compatible with all Raspberry Pi CM4 variants.
Compact Carrier Board: Space-saving design for embedded and industrial applications.
Direct LCD Interface Support: Enables easy connection to compatible display modules.
Rapid System Development: Simplifies prototyping and embedded product design.
Embedded Integration Ready: Suitable for custom hardware and OEM applications.
Reliable I/O Expansion: Provides essential interfaces for Compute Module 4 operation.
Easy Installation: Compute Module 4 plugs directly into the baseboard.
Optimised for Industrial Applications: Suitable for continuous embedded operation.
Compact Form Factor: Ideal for projects with limited installation space.

Applications

Embedded control systems
Industrial automation
Human-machine interface (HMI) systems
IoT gateways
Smart home controllers
Robotics
Digital signage
Edge computing devices
Kiosks and information terminals
Custom Raspberry Pi Compute Module 4 products

What’s On Board

CM4 socketsuitable for all variants of Compute Module 4
Power input/Programming5V/2.5A power supply, or used for eMMC burning
LCD Port40PIN LCD display port, for direct connection to 70H-1024600 series display
FANfor connecting cooling fan, allows speed adjustment via IO ports
CAM2x MIPI CSI camera ports
HDMI0 connectorHDMI0 port, supports 4K 30fps output
USB 2.0 ports2x USB 2.0 ports, for connecting sorts of USB devices
Gigabit Ethernet connectorGigabit Ethernet RJ45 connector, with 10 / 100 / 1000M network support
M.2 indicatorindicating the operating status of M.2 interface
Raspberry Pi indicatorsGreen LED: PWR, indicating the status of Raspberry Pi power supplyRed LED: ACT, indicating the operating status of Raspberry Pi
Boot switchON: CM4 would be booted from USB-C interfaceOFF:CM4 would be booted from eMMC or TF card
40PIN GPIO headerfor connecting sorts of HAT
TF card slotfor connecting a TF card with pre-burnt image (Lite variant ONLY)
FE1.1SUSB HUB chip, support expanding USB port
M.2 slotsupports sorts of NVME Solid State Drives, or communication modules with PCIE M.2 KEY-M interface
RTC chipallows RTC-related functions like wakeup, shutdown, reboot, and more
RTC interrupt selectionGN-EN: CM4 shutdown(by default) on RTC interruptionPI-RUN: CM4 reboot on RTC interruptionD4: D4 pin is triggered on RTC interruption
RTC battery holdersupports CR1220 button cell

Product show

Dimensions

Package Content:

CM4-IO-BASE-C x1
Solid State Drives mounting screw x1